Silo



Patented Feb. 15, i927.

n ,risas :u El

ALFRED VALLENTIN, OF CHICAGO, ILLNIS,

SILO'.

application inea Ju'n'e 1o, 1972s. serifu Np. 114,988.

The object of my inventionqis to combine,

the advantages of concrete and stave construction, to secure greaterdurability; to

Vreduce loss from freezing andV from temperature changes; and to providea stave silo that shall .always be substantially tight.

In the drawings Fig. Y1 is Va sectional elevation of a cylindrical-silo,of my construction, in aplane laid through the axis of the tail of the,sectional elevation shown lin Fig.

wall 12;

1,; Fig. 4 is fan enlarged sectional elevation in the plane indicated byline 4 4 in Fig. 1; Fig. 5 is a detail elevation of a portion of theinner, wooden `wall of my silo, viewed fromv the inside of the silo,with parts broken away; Fig. 6 is a sectional plan view taken on line6-6 in Fig. 5.

Referring'to the drawings, on a concrete base ring` 10, laid on aconcrete foundation 11, there'is erected a circular vertical concretewall 12, provided with door openings 13. Wall 12 is preferablyconstructed of blocks 14 laid so as to overlap, and preferably tonguedand grooved horizontally and vertically.V At suitable intervals, aboutthree feet y distant, vertically, adjoining layers of blocks 14 areprovided with dove` tail grooves 15, into which are entered wooden rings16, made in sections, which protrude from the inner face 17 of concretewall 12 a distance ofjseveral inches. In door openings 13 there areinserted suitable wooden doorframes 18 which project beyond face 17 asuihcient distance to have their inner faces Hush with the inner facesof tongued and Vgrooved wooden staves 19 which are set up against rings16, about 2 distant from face 17, in a number of series, separated atsuitable intervals by compression springs 20, interposed between theseveral series of staves. Staves19 are held in place against rings 16not only by reason of the fact that their inner faces are narrower thantheir outer faces; the further fact that they are tongued and4 grooved;and the pressure of springs 20; but also by vvertical boards 21,overlapping each pair of staves 19 adjoining springs 20, which boards 21are drawn against the underlying pair of staves 19 by internallythreaded sleeves 22, engaging threaded bolts 23, anchoredin sleeves 22being provided with numerous preferably squareyheads 24 adaptedto lbeengaged `by av suitable socket wrench, and with outwardly projectingcircular `flanges 25, adapted to engageinwardly projecting flanges .26at the bottom of suitablesockets 27 which are integral with lmetalplates 28, inlaid into the faces of boards 21 so :as vto be flushtherewith. Springs 2O 'may befof any .desired construction. Aln thedrawings I have shown them as elliptical *,Sprllgs,

entered into suitable vseats 29 in the adjoining faces 30 of 4Steves'29, yand :there further held by horizontal pins 31,1entered into faces`30. and projecting through openings 32 inispringsQO.VV j y .Y

VStaves 19,are preferably,setl onan elevated, peakediidge 33, formed onbase lring 10, concentricrwih wall12. )In order-to prevent staves 19from slipping off this ridge '33, I prefer to provide their lower endswith grooves 34, fitting'V on ridge 33. Between ridge 33 and wall 12 Iform a sloping draingutter 34, with its highestvpoints adjoining dooropeningv 13, and thence pitching downward to a grated opening 35, inwall 12, opposite door openings 13. To close the spaces between wall 12and stav-es 19 at the top, and at the same time to hold the upper endsof staves 19 in .fixed position with v'reference to wall 12, I providepreferably metallic sectional caps 36, having concentric Vdependingflanges 37 and 38, to receive be'- tween them the upper ends of staves19, and depending flange 39 to enter groove 40, formed in the upper faceof capblocks 41 of wall 12;V Openings 42 are provided in caps 36 toallow passage rof air 'entering through opening 3.5 and circulatingupward between wall 12 and staves 19, through th-e spaces between rings16 and boards 21. Between boards 21 andthos-e staves 19, against whichboards arel drawn by sleeves22, I prefer to interpose elastic asbestosinsulation strips 43 to exclude more perfectly all leakage of air andmoisture. The several doorframes 18 are connected at their inner ends inany suitable wayY so as to make a surface flush with the inner face ofadjoining staves 19. A suitable roof 44 and suitable doors 45 areprovided, of any convenient construction.

It is manifest that the silo constructionA above described might bedeviated from in particulars from the essentials of my invention. Allsuch deviations I` intend "o cover by my claims. j

without departing Ijclaiin- I- y j A v1.1In a silo, the combination ofan outer `Wall, preferably made of stony material,

Yhorizontal rings attached to the outer vvall,

on .the inside thereof, and an inner Wooden n Wall,cheld against saidrings Without being :attached to said rings. f Y Q ,In a silo, thecombination of verticalv Wvooden staves, arranged in a number of series,means for preventing the staves from yielding outvvardly, compressionsprings Y enteredbetween the several series of staves', boards `togcoverthe spaces betweenk the several seriesof staves, and means for drawingthe boards into tight engagement with the adjoining staves. i

'3, In a silo, the combination of an outer Wall, made of` stonymaterial, an inner Wooden Wall, separated from the. outer Wall so as toform air spaces between the Walls,

anda base supporting both Walls, said base being provided with a peakedYelevated ridge,

supporting Vthev Wooden Wall, and With a sloping draingroove betweensuch ridge and the outer Wall, leading to a suitable outlet.

' 4; In-.a silo, the combination of an outer ,Y ,Wall of stony material,an inner Wooden l 5.111 a silo, the combination Yof an outer,

Wall of stony material, an inner Wooden Wall separatedfrom the outerWall so yas to forni air spaces, and n'ieaiis for closing the air spacesat the top, consisting of metal plates having concentric dependingflanges, engaging both the npperends of the staves and also a grooveformed in the upper face ofV tliefstony Wall.V

6. In 'a silo, the combination of an outer Wall, preferably iii-adeofconcrete blocks, made 'so as toforinon the inside thereof,

at suitable distances, horizontal dovetailY grooves; Wooden rings heldin these grooves and projecting therefrom; an inner Wooden Wall; andmeans for holding the inner Wall in contact with the rings, except atsuitable-v intervals.

1 ALFRED Y vALLnNTiiv. A,

